public class question3_4 {
	public static void main (String args[]){
		int sum=0,i,j;
		for (i=1;i<=1000;i++) {
			for(j=1,sum=0;j<i;j++) {
				if(i%j==0)             
					sum=sum+j;
			}
		
		if(sum==i)
			System.out.println("完数"+i);
	}
}
}
